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Cool preview of Pluto craft's next target | | Today, and on July 10 and 17, astronomers will be watching as tiny MU69 in the outer solar system - the New Horizons spacecraft's next target - occults or blocks the light from 3 different stars. | | |
LIGO's 3rd gravitational wave detection | | | Albert Einstein hypothesized these ripples in the fabric of space-time a century ago. Now scientists have detected them for the 3rd time, from distant black hole collisions. | | |
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